Soil use planning in GIS: allocation of an industrial district in the municipal district of Lajeado, RS, Brazil

Abstract

The use of geographical information systems to the decision making process is turning an important tool for the soil use planning, because it allows a faster result with less subjectivity. This work had as objective presents a spatial location model to an industrial district in the municipal district of Lajeado, RS, through an Multi-Criteria Evaluation methodology subsidized by Geographical Information Systems (GIS). They were appraised four restrictive criteria: the Permanent Preservation Areas (APPs), the Restricted Use Areas (AUR), the native forest and the urban area, and five criteria factors: declivity, highways, soil use and coverage, geology and pedology being these, with some suitability degree, among 0 (lowest suitability score) to 255 (highest suitability score). As result, was obtained seventeen area fragments, with more than 10 ha that present a high suitability value according to the appraised criteria. Key-Words: urban planning, industrial district, geographical information systems, multi-criteria evaluation, fragmentation.